I registered to be a Beta 10 tester a few weeks ago. I have been getting OS 9 Beta updates but nothing on 10. I went to the Apple beta website again and tried to download OS 10 beta and when I tried to download the software profile I got the message "Remove the profile "IOS 9 Beta Software Profile" before installing this profile. How do I remove the IOS 9 Profile? Do I have to do a clean reinstall??